Spirit AeroSystems Holdings, Inc. is a non-original equipment manufacturer (OEM) aircraft parts designer and manufacturer of commercial aero-structures. The Company is a supplier of aero-structures to The Boeing Company (Boeing) and Airbus S.A.S (Airbus). The Company operates through three segments: Fuselage Systems, Propulsion Systems and Wing Systems. It is engaged in production, including the majority of the airframe content for the Boeing B737. It is also a content supplier of wing systems for the Airbus A320 family. It is a supplier for the Airbus A380 and Airbus A350 XWB (Xtra Wide-Body). Its products include Fuselage Systems, Propulsion Systems and Wing Systems. The Company offers spares and replacement parts for B737 Classic, B737NG, B747, B757, B767, B777, Rolls-Royce BR725, A320, A330, A340 and A380. Its Maintenance, Repair and Overhaul at repair stations provide complete on-site repair and overhaul to support MRO services for B747, B767, B777, B787 and Rolls-Royce BR725.